gcc/testsuite/gcc.dg/pr103860.c

   1 /* PR rtl-optimization/103860 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O3" } */
   4 /* { dg-additional-options "-fPIC" { target fpic } } */
   5
   6 static int d, *e;
   7 int f;
   8
   9 __attribute__((noinline)) signed char
  10 foo (signed char b, signed char c)
  11 {
  12   return b + c;
  13 }
  14
  15 int
  16 main ()
  17 {
  18   signed char l;
  19   for (l = -1; l; l = foo (l, 1))
  20     {
  21       while (d < 0)
  22         ;
  23       if (d > 0)
  24         {
  25           f = 0;
  26           *e = 0;
  27         }
  28     }
  29   d = 0;
  30   return 0;
  31 }